devinbost opened a new issue #4021: Parallel pulsar-admin commands do not support parallelization URL: https://github.com/apache/pulsar/issues/4021 ## Describe the bug Executing pulsar-admin commands in parallel via bash results in only the last command succeeding. The other commands are ignored. ## To Reproduce Steps to reproduce the behavior: 1. Start docker standalone via: `docker run -it -p 80:80 -p 8080:8080 -p 6650:6650 apachepulsar/pulsar-standalone` 2. Ensure that /etc/pulsar/client.conf is pointed to the standalone instance. 3. Execute: `pulsar-admin tenants create t1 & pulsar-admin tenants create t2 & pulsar-admin tenants create t3 & pulsar-admin tenants create t4 & pulsar-admin tenants create t5 & pulsar-admin tenants create t6 & pulsar-admin tenants create t7 & pulsar-admin tenants create t8 & pulsar-admin tenants create t9 & pulsar-admin tenants create t10 & pulsar-admin tenants create t11 & pulsar-admin tenants create t12 & pulsar-admin tenants create t13 & pulsar-admin tenants create t14 & pulsar-admin tenants create t15 & pulsar-admin tenants create t16 & pulsar-admin tenants create t17 & pulsar-admin tenants create t18 & pulsar-admin tenants create t19 & pulsar-admin tenants create t20 & pulsar-admin tenants create t21 & pulsar-admin tenants create t22 & pulsar-admin tenants create t23 & pulsar-admin tenants create t24 & pulsar-admin tenants create t25 & pulsar-admin tenants create t26 & pulsar-admin tenants create t27 & pulsar-admin tenants create t28 & pulsar-admin tenants create t29 & pulsar-admin tenants create t30 & pulsar-admin tenants create t31 & pulsar-admin tenants create t32 & pulsar-admin tenants create t33 & pulsar-admin tenants create t34 & pulsar-admin tenants create t35 & pulsar-admin tenants create t36 & pulsar-admin tenants create t37 & pulsar-admin tenants create t38 & pulsar-admin tenants create t39 & pulsar-admin tenants create t40` 4. Execute: `pulsar-admin tenants list` 5. Notice that only the tenant `t40` was created. Namespaces have the same issue. Observe: 6. Execute: `pulsar-admin namespaces create t40/ns1 & pulsar-admin namespaces create t40/ns2 & pulsar-admin namespaces create t40/ns3 & pulsar-admin namespaces create t40/ns4 & pulsar-admin namespaces create t40/ns5 & pulsar-admin namespaces create t40/ns6 & pulsar-admin namespaces create t40/ns7 & pulsar-admin namespaces create t40/ns8 & pulsar-admin namespaces create t40/ns9 & pulsar-admin namespaces create t40/ns10 & pulsar-admin namespaces create t40/ns11 & pulsar-admin namespaces create t40/ns12 & pulsar-admin namespaces create t40/ns13 & pulsar-admin namespaces create t40/ns14 & pulsar-admin namespaces create t40/ns15 & pulsar-admin namespaces create t40/ns16 & pulsar-admin namespaces create t40/ns17 & pulsar-admin namespaces create t40/ns18 & pulsar-admin namespaces create t40/ns19 & pulsar-admin namespaces create t40/ns20 & pulsar-admin namespaces create t40/ns21 & pulsar-admin namespaces create t40/ns22 & pulsar-admin namespaces create t40/ns23 & pulsar-admin namespaces create t40/ns24 & pulsar-admin namespaces create t40/ns25 & pulsar-admin namespaces create t40/ns26 & pulsar-admin namespaces create t40/ns27 & pulsar-admin namespaces create t40/ns28 & pulsar-admin namespaces create t40/ns29 & pulsar-admin namespaces create t40/ns30 & pulsar-admin namespaces create t40/ns31 & pulsar-admin namespaces create t40/ns32 & pulsar-admin namespaces create t40/ns33 & pulsar-admin namespaces create t40/ns34 & pulsar-admin namespaces create t40/ns35 & pulsar-admin namespaces create t40/ns36 & pulsar-admin namespaces create t40/ns37 & pulsar-admin namespaces create t40/ns38` 7. Execute: `pulsar-admin namespaces list t40` 8. Notice that only t40/ns38 was created. **Expected behavior** - Tenants t1, t2, ..., t40 should all be created in parallel. - Namespaces t40/ns1, t40/ns2, ..., t40/ns38 should all be created in parallel. **Note: This issue impacts fast/seamless continuous deployments.** ## Additional context This issue relates to my comment in PR 4012: https://github.com/apache/pulsar/pull/4012#issuecomment-481472762
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